Android listview image url from JSON รันภาพวนซ้ำคะในแถวแรกคะ

public class HomepageActivity extends Activity {
	String selected="";
	ArrayList<HashMap<String, String>> myArr;
	ListView list;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.listview_tab);
		
		String jsString = "[{\"radioID\":\"0\",\"radioPic\":\"http://www.thainht.org/upload/images/radio-icon(1).png\",\"radioName\":\"Seed FM\",\"Desc\":\"FM 97.5 MHz-Bangkok\"}"
				+ ",{\"radioID\":\"1\",\"radioPic\":\"http://radiobeta.com/images/radios/big/logo0_1331153395-virgins.png\",\"radioName\":\"95.5 Virgin HITZ\",\"Desc\":\"FM 95.5 MHz-Bangkok\"}]";
	
		JSONArray data ;
		try{
			myArr = new ArrayList<HashMap<String,String>>();
			data=new JSONArray(jsString);
			
			for(int i =0;i<data.length();i++)
			{
				JSONObject jsonObject = data.getJSONObject(i);
				HashMap<String, String>map ;
				map=new HashMap<String, String>();
				map.put("name", jsonObject.getString("radioName"));
				map.put("pic", jsonObject.getString("radioPic"));
				myArr.add(map);
				
			
			}
		}catch (Exception e) {
			// TODO: handle exception
			Log.e("error", jsString);
			
		}
		list=(ListView) findViewById(R.id.listfav);
		list.setAdapter(new AdapterTest(this));
		}


public class AdapterTest extends BaseAdapter {
		Context context;
		
		public AdapterTest(Context c){
			this.context=c;
		}
		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			return myArr.size();
		}

		@Override
		public Object getItem(int arg0) {
			// TODO Auto-generated method stub
			return arg0;
		}

		@Override
		public long getItemId(int arg0) {
			// TODO Auto-generated method stub
			return arg0;
		}

		@Override
		public View getView(int arg0, View arg1, ViewGroup arg2) {
			// TODO Auto-generated method stub
			
			LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			if(arg1==null)
			{
				arg1=inflater.inflate(R.layout.list_item, null);
				
			}
			
				
			
				TextView txttitle =(TextView) arg1.findViewById(R.id.title);
				txttitle.setText(myArr.get(arg0).get("name"));
				ImageView img = (ImageView)arg1.findViewById(R.id.icon);
				
				new DownloadImageTask(img).execute(myArr.get(arg0).get("pic"));
				return arg1;
			
		}
		
		
	}

class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
		ImageView bmImage;

		public DownloadImageTask(ImageView bmImage) {
			this.bmImage = bmImage;
		}

		protected Bitmap doInBackground(String... urls) {
			String urldisplay = urls[0];
			Bitmap mIcon11 = null;
			try {
				InputStream in = new java.net.URL(urldisplay).openStream();
				mIcon11 = BitmapFactory.decodeStream(in);
			} catch (Exception e) {
				Log.e("Error", e.getMessage());
				e.printStackTrace();
			}
			return mIcon11;
		}

		protected void onPostExecute(Bitmap result) {
			bmImage.setImageBitmap(result);
		}
	}